Boiler-furnace.



J. R. SURRELL.

BOILER FURNACE. APPLICATION FILED MAR. 4, 1908.

902,265. Patented Oct. 27, 1908. i

6'SHEETSSHEET 1.

wyyimon ATTORNEY J. B. SURRELL.

. BOILER FURNAUE.

APPLICATION FILED MAR. 4, 190a.

Patented Oct. 27, 1908.

6 SHEETSSHB ET 2.

TNESEES} lXNVIENTOR ATTORNEY 5SHBETS-SHEET 3.

Patented Oct. 27, 1908.

J. R. SURRELL.

BOILER FURNACE,

APBLIUATION FILED MAE. 4, 1908.

IlHH

fi'LiqT E:

WITNESSES i XNVENTOR 7 ATTORNEY I J. R. SURRELL.

BOILER FURNACE.

APPLICATION 11.51) MAR. 4, 190a.

Patented 0011.27, 1908.

5 SHEETS-SHEET 4.

/INVENTOR ATTORNEY ITNESSES Patented 00t.27, 1908. I

%1NVENTOR M ATTORNEY UNITED sT -TEs PATENT OFFICE.

JOHN RAL H'SURRELL, or NEW YORK, N. Y.

house-nuances.

N0. ceases.

Specification of Letters Patent.

Patented Oct 97, 1908.

Application filed March 4, 1903. Serial No. 419,1.

1 cm aihoin it may co'hcem."

Be it known that I, JOHN RALPH SURRELL, a subject of Great Britain, residing at the borough of Manhattan of the city of New York, in the county and State of New York, have invented a new and useful Boiler-Furnace, of which the following is a specificaboiler.

The objects of my invention are to provide a boiler furnace which can be readily attached to astcam boiler; by which heated Water may be supplied to the steam boiler; by 'Which a high'prcssurc of dry stcau'i may be maintained in the boiler: by which comsaving of fuel is attained, and for which plete combustion of the fuel may be obtained with the extraction of a great degree of heat thercfrou-i, without smoke and without conibustiblegases, except in slight. measure when the furnace is first hghtedrby which great only a limited chimney draft is required. sufli'cien't to carry oil' the smoke when first lighted and subsequently to carry otf the non-combustible gases. I attain these objectsby the device illustrated in the accompanying drawings in which Figure. 1 is'a central longitudinal section (Id the line 1-4 of Fig. 2. Fig. 2 is a horizontal section on the line 2 -2 of Fig. 1.

Fig. 3 is a' vertical section on the line 3-3 of Fig. 2. Fig. 4 is a detail vertical section of a portion of the feed water heater on the line 44 of Fi 5. Fi 5 is a detail honizontal section 0 the fee water heater on the line 5+5 of Fig. 4. Fig.6 is a detail vertical section of a modified form of my boilerr nace. Fig. 7 is a central longitudina tion of another modified form ofmyboiler furnace.

Similar numerals refer to' similar parts throughout the several views.

My boiler furnace comprises a fuelfreceptacie, 10, Fig. 1, which may have Water cooled sides or cooled by any suitableform of coolin It is preferably cylindrical in form an arranged upon a suitable founda-' tionin' conjunction with a steam boiler. The fuel receptacle, 10, is open at the top, adapted to be fed vvith fuel at that, point, is provided with opening and closing covers for the top,

'29, clinker doors 3(), conveniently arranged in the sides, a grate 31, and anash pit 32, having suitable doors for the removal of ashes.

Centrally placed within the fuel receptaple 10, and surrounded by the fuel is a feed Water heater having a cylindrical base 11, restingupon the same foundation as the fuel receptacle but not communicating with the ash pit. thereof. The base, 11, is open at its top and an annular collar, 12, is attached vto the upper end of the base, 11, and connected with a. water supply, '13. Water pipes, 14. are affixed at their lower ends to the annular collar, 12, and at their upper ends-t0 a second or upper annular collar, 15. and. so connected to allow the passage oi water from the lower annular collar, 12, to the upper annular collar 15. The water pipes l-lare arranged in the annular collars 12 and 15 to allow the passage of heat and flame betwen them from the fuel receptacle 10, the-interior space resulting from their circular disposition in the annular collars forming the heat chamber 16, of the feed water heater. .The upper annular collar 15 is conncctcd with thewatcr space of the steam boiler by pipes 17 and 18. A hood 19 which nu-1y be water cooled or otherwise suitably cooled, is carried from'thc upper annular collar 15 to the face of the steam boiler in such manner as to inclose the heat tubes of the steam boiler. A stcanrnozzle 20 connected with the steam boiler, or an outside steam supply,'is inserted into the base 11 of the feed water heater, extending upward into the heat chamber 16 to a point slightly above the annular collar 12. The basell of the feed water heater is provided with a damper chamber 21 having a regulating door 22, the damper chamber having no com munication with the ash pit of the fucl-receptacle. A heat case 24, Figs. 1, 6 and T,

which may be Water cooled or by any suitable form of cooling. is placed around the steam boiler, arranged, F igs. l and 6. so that the heat. from the heat chamber of the feed water heater first passes through the boiler tubes and thence around and under the boiler to the chimney.

Fig. 7 shows a modified form designed to pass water heater first under the boiler and thence around and through the tubes to the chimney. The heat case, 24,'has at its rear end from the heat chamber of the fced llt heater, the doors ol the ash pit being kept :1V damper door, 25. An injector, 28, adapted to use steam oroil or these combined inserted into the hood, 19, to drive and increase the heat and flame froin the heat chamber of the iced. Water heater through the heat space of the steam boiler. The modified forms i 3 my boiler furnace,

6 and 7, are providcil with a coil oi": water pipes, 2'6, i stead of the two annular collars and. the verti al water pip lln: coil. 26, lfiig. (3, being carried .up into the hood, l nd the water virom the feed w arc-r heater ad. titted to the steam boiler at a point above the tubes. in the form shown in Fig. 7, the i hood, 19, made lower and the coil, 2(3, l carried up only to a. point substantially in a 1 line with the top oi the fuel receptacle l0, l and thence as a pipe, 27, enters the boiler at l l a point below the tubes.

The operation of my boiler furnace is as follows: The fuel rccoptachje, it), having been. filled with suitable kindling and fuel, to wit. coal, soft or hard, to a point about six inches f or slightly below its top, the lire is started, the top covers, 29, of the fuel receptacle be ing kept open and. the regulating door. l of the damper chamber 21, arranged to give l draft to the base. ll, of the food wat zclosed. It the steam jet, 20, is attached to an outside steam supply it may he turned on to accelerate the draft through the heat. chamber, 16, and thus the draft of the fuel receptacle. The fire in the fuel receptacle," through the effect of the draft through the heat chamber of the feed water heater will gradually extend upward, steady, intense and red glowing to a point slightly below the top of the fuel receptacle. The heat and flame from the fuel receptacle passing between the water pi-pcsflb', or the coil pipes, 26, as the case maybe, will heat the Water in the pipes to be conducted with increasing intensity to the water-space of the steam boiler and the heat and flame also passing into the heat chamber, 16; of the feed water heater, Will be conveyed thenci'i to the heat space of the steam boiler. To dcadcn the in my boiler furnace the regulating door, 22, of the damper chamber, 21, closed, the top covers, 29., of the fuel receptacle 10 are closed and the damper door 25, in the heat case, 24, is opened hat I claim and desire to l lcrs Talent is: i 1. A feed water heater for slcain boilers I l l l protect by liethaving a water chamber and heating surilfacesysaid heater comprising a fuel reccptacle having grate bars and an ash pit, a sot ogl. conncctcd piping mountedwithin said receptacle with a fuel space snrroulnling it and forming a chamber for air and gases within i means for supplying.watcr to one end of said piping, means connec...ng the other end olf said piping with the walcrl end of said piping, other end of said piping with the water soones- T space of the boiler for delivering the heated water thereto, and means placing said chamber in connnnnication with the heating surfaces of said boiler, substantially as described and set forth.

A feed water heater for steam boilers having a water chamber and heating surfaces, said heater comprising a fuel receptacle having grate bars and an ash pit, a set cl connected piping inountedwithin said recc itacle wilh a fuel space sill-rounding it and forming a chamber for air. and gases within it, means for supplying water to one means connecting the space of the boiler for delivering the heated water thereto, and means placing saidchambe]: in comnninication with the heating surfaces of said boiler, said piping being vertically disposed within said receptacle and extending from the grate bars to the upper end thereof, and said chamber being open at its upper end, sul'istantially as described and sci. forth.

3. A feed water heater for steam boilers having a water chamber and heating surfaces, said heater comprising a fuel receptacle having grate bars and an ash pit, a set of con ncrlcd pipingonountcd within said rcceptallL with :1 incl spacesnrroundil'ig it and forming a chamber for air and gases within it,

int-ans for supplying water to one end of said piping, means connecting the other end of said piping with the water space of the boiler for delivering the heated water thereto, means placing said chamber in communication with the hcating surfaces of said boiler and means for leading external'air to said chamber and having means for controlling the passage of said external air through the same, substantially as described and set forth.

4. A feed water heater for steam boilers having a water chamber and heating sure faces, said heater comprising a fuel receptacle havinggrate-bars and an ash pit, a set of connected piping mounted Within said receptaclc with a fuel space surrounding it and forming a chamber for air and gases within it, means for supplying water to one end of said tiiping, means connecting the other end or said piping with the water spaceof the boiler for delivering the heated Water thereto, and means placing said chamber incomniunicalion with the heating surfaces of said oiler, said piping being vertically disposcll within said receptacle upon a c lindrical base extending downward throng the ash pit of said receptacle and forming a c0ntinnation of said chamber, means for leading external air through said base to 'said :han1bcr. andlneans controlling the same, substantially as described and set forth.

5. A' feed water heater for steam boilers having awater chamber and heating surscenes-- faces, said heater comprising a fuel receptacle having top covers, clinker doors, grate bars and an ash' pit, a set of connected pipchamber for. air, and gaseswithin it, means for supplying Water to one end of said pipmg, means connecting the other end of said piping with the Water space of the boiler or deliveringthelheated Water thereto, and

means placing said chamber in communicat-ion with the heat surfaces of said boiler, said piping being vertically disposed -Within said receptacle and having at its upper and lower ends an annular collar, the lower annular collar resting upon a cylindrical base extending downward through the ash pit,

said base forming continuation of said. I

'having a Water chamber and heating surchamber and having means leading external air thereto, and means controlling the 'pasof said external air through the same, substantially descri.l: ed and set forth.

(ii In a feed watcr'heater for steam boilers having a Water chamber and heating sui faces, said heater heving a fuel receptacle with gratebars and an ash pit, means supplying Water to said heater, means conveying the heated Water from saidlheeter to the Water chamber of boiler, means con, veying air and. gases from. saidheater to the heating sluifaces of the boiler, and the cylindrical base having means leading external air tl'ierethrough, and means controlling the same, the set of connected piping vertically disposed in said fuel receptacle with a fuel space surrounding it and forming a chamher for air and gases within it, substantially scribed an "pose set forth,

I ,l for steam boilers having a Water chamber and heating surfaces, said heaterheving a fuel receptacle with 'g'rate-barsand an ash pit, means supplying water to said heater, means conveying the heated water from said heater to the water chamber of the boiler, means conveying air and gases fromjsaid heater to the heating surfaces of the boiler, and the-cylindrical base havingmeans leading external air therethrough and means controlling the same, the set of connected piping verticallydisposed Within said fuel receptacle with a fuel space surrounding it. and forming a chamberfor air and gases Within it, and having at its upper and lower end an annular collar, substantially as described and for the purpose set forth. r

8. In a feed water heater for steam boiler faces said heater havin a fuel rece tacle with an ash-pit and grate-bars, means supplying Waterv to said heater, means conveyl-ing the heated Water fromsaid heater to thewater chamber of the boiler, the set of connected piping vertically d1sposed in said fuel receptacle, and having a fuel space surrounding it and forming a chamber'for air,

and gases within it. and the cylindrical base having means leading external air there through, and means controlling the same, the hood colmnunicating between the air and gas chan'lbcr of said set of connected piping end the heating surface of the boiler, substantiallyas described and for the purpose set fort v JOHNRALPH SURRELL.

lVitnessesz v Hal. STOOKUM, L. F. Dnnn- I 

